Stewardship economy: private property without
private ownership advocates radical change to the economy, achieved by
replacing ownership of the natural world with stewardship. The book is available
here
to download (free) as a pdf or to order as a hard copy.

Stewardship economy is part of a much wider movement
for Earth Sharing, whose members believe in a world where:

Everyone has enough to eat

Everyone enjoys a clean and
safe environment

Everyone shares in the economic
value of the Earth's natural resources